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3. Coordinate Geometry
medium
Plot the points $P (1,0), Q (4,0)$ and $S (1,3) .$ Find the coordinates of the point $R$ such that $PQRS$ is a square.
Option A
Option B
Option C
Option D
Solution

Plot the points $P (1,0), Q(4,0)$ and $S (1,3)$ in the Cartesian plane. As we know all the sides of a square are equal and each angle is of $90^{\circ}$ measure. Therefore, the abscissa of the vertex $R$ is $4$ and its ordinate is $3 .$
Hence, the coordinate of the point $R$ are $(4,3)$
Standard 9
Mathematics